NMR Investigations of the Microscopic Magnetic Properties of CoS_2
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概要
- 論文の詳細を見る
The magnetic properties of the metallic compound CoS. have been studiedmicrosqopica[[y using the cw and pulsed NMR techniques in both the paramag-netic and the ferromagnetic states. The "Co Knight shift is shown to be inlinear relation with the uriiform susceptibility with a hyperfine coupling constantof - 148.6 k0e/spin. The d-spin susceptibility 7. derived from the Knight shiftmeasurements is found to obey the Curie-Weiss law above 420 K with the effectivemoment corresponding to one electron per Co atom, while the slope in the1 / z. vs T plot below 420 K is smaller than that above 420 K. The temperatureand external field dependences of the NMR frequency in the ferromagneticstate have also been measured in detail. The results of our measurements arein accord with the predictions based on the general theory of spin fluctuationsand yield a conclusion that CoS. can be classified as a nearly saturated narrowband ferromagnet.
- 社団法人日本物理学会の論文
- 1979-08-15
著者
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Yasuoka Hiroshi
Institute Fo Solid State Physics University Of Tokyo
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Yasuoka Hiroshi
Institute For Solid Physics University Of Tokyo
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